Find a used saddle shop
I would find a good old saddle shop. A lot of the small saddle shops owned by horse lovers. The ones I know buy the best saddles and sell them reasonably. They know a lot about horses and saddles. They let you see and sit in them. Maybe bring in a picture of your horse with measurements so they can see what you need. I think it is a better more personal way to buy a saddle. Many of them have only be riddin in a few times. You may have to pay a little more in gas to drive to the little shops but you don't have to pay shipping and you get what you want.